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AVR Connectivity

Discuss AVR Connectivity at the Audio & Video Cables within the HiFiVision.com - Audio Video Hi-Fi Forum; Originally Posted by ashish7811 thanks for such useful information recently i have purchased onkyo 3400, ...

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  #21  
Old 22nd June 2011, 03:12 PM
 
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Re: AVR Connectivity


Quote:
Originally Posted by ashish7811 View Post
thanks for such useful information

recently i have purchased onkyo 3400, samsung LED TV and LG BD player
and i have connected them by 2 HDMI connection (BD-->RECEIVER-->TV) and one optical from TV to RECEIVER...is it sufficient connection..?

and can anybody tell where i can get information about different 5.1 channel audio formates ??(i want to know what is PCM multichannel audio which I found in many HD movie and TV series ? )
Wikipedia is always a good place to start to learn a.
about 5.1

to explain other part of question.

A digital audio in uncompressed wav form is PCM. THe DTS, DD and DTHD MA and DD tru HD are all compression formats that compress it in lossy or lossless algorithms.

For a same master - DTS MA = DD tru HD = PCM.

All digital audio must be converted from Compression formats to PCM before being converted to Analog audio. Now either you can let your AVR do that or your player do that, it doens'nt matter. but some people prefer to let player do that to let load off the AVR.

Most movies now prefer DTS MA since PCM takes more space than MA for same track. It leaves space for Extras and Video.
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  #22  
Old 22nd June 2011, 04:09 PM
 
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Re: AVR Connectivity

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Originally Posted by ashish7811 View Post
and one optical from TV to RECEIVER...is it sufficient connection..?
The optical connection will carry only audio data. You also need to use a composite or component for video connection.

Quote:
Originally Posted by ashish7811 View Post
and can anybody tell where i can get information about different 5.1 channel audio formates ??(i want to know what is PCM multichannel audio which i found in many HD movie and TV series ? )
The two main 5.1 audio formats for movies are Dolby and DTS. There are umpteen variations of these in the market. For details on Dolby look at Dolby Technology India Private Limited. For details on DTS, please visit DTS | Home.

What is PCM? Let us go back a little to understand this.

When a movie is shot, the audio is (at at least was) recorded in analogue domain. In a standard film roll, the analogue audio signal is part of the film (outer edges) and is read by special sensors on the projector.

When we come to watching a movie using a DVD, there is not enough space on the media to store all the audio signals. So the analogue signal is digitised and then compressed using various algorithms, mostly owned by Dolby and DTS. When you play the DVD, the player decodes the algorithm and recreates the analogue signal that is amplified and played on your speakers.

The digital representation of any analogue wave is called PCM. What is done is that the analogue wave is sampled at regular intervals and represented by a digital wave. A PCM has two parts - (one) a sampling rate that represents the number of times the analogue wave is read or sampled. This is shown as xxx kHz or so many kilo hertz (or samples) per second. The second is called depth that represents the number of digital samples that are created. This is usually called xx bits. The higher the sampling rate and the higher the bit, the closer the digital wave or PCM is to the original analogue wave.

An audio signal stored on a DVD or Blu-Ray, thus, has multiple parts:

1. A digital representation of 6 or 8 channels of audio called PCM streams or data.
2. A compression methodology for storing the 6 or 8 channels of PCM data.

When playing, what is done is as follows:

1. A decoder reads the compressed data and creates 6 or 8 channels of PCM data.
2. A DAC reads all the channels of PCM and converts them to analogue signals for amplification and playing on speakers.

When you connect a DVD/BR Player or any source to an AVR, you can send the audio data in multiple ways.

1. The player can decode, execute the DAC and create 6 or 8 channels of analogue audio. This is sent in analogue form to the receiver that just amplifies and plays the audio signals.

2. The player can decode and create 6 or 8 channels of PCM. This is sent in digital form to the receiver that does a DAC on each channel, amplifies and then plays the audio on the speakers. This is usually referred to as PCM or multichannel audio.

3. The players does nothing. It just picks up the compressed audio data and sends it as is to the receiver. The receiver decodes and does a DAC followed by amplification and playing. This is usually referred to as bitstreaming or sending data in raw format.

Cheers
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  #23  
Old 26th June 2011, 09:02 PM
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Re: AVR Connectivity

WOW.....nicely explained sir... really thnakful of you.

this is EXACTLY the kind of guidence and information us nubes (or rather wannabee audiophiles) look for from veterans like you...

so.. lets say, I have a Sony BDS370 as my source reader and Dennon AVR1611 as AVR. where should I do the DAC in this particular setup? (in other words, of the processesing nodes-i.e. Sony BDS370 and Dennon AVR 1611, wehich one has better processing capabilities?)
I understand that if I do the DAC through BDP, I need to connect it to AVR through anlogue out (I do not know if it is there in Sony or not) and if DAC is done through AVR then I will use HDMI to pass through the audio.
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  #24  
Old 26th June 2011, 09:24 PM
 
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Re: AVR Connectivity

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Originally Posted by paritosh View Post
so.. lets say, I have a Sony BDS370 as my source reader and Dennon AVR1611 as AVR. where should I do the DAC in this particular setup? (in other words, of the processesing nodes-i.e. Sony BDS370 and Dennon AVR 1611, wehich one has better processing capabilities?)
The BDS370 does not have multi channel audio out. So you have to send the audio signals as either LPCM or bitstream. The DAC inside the BDS370 works only for two channel audio.

Cheers
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  #25  
Old 27th June 2011, 07:37 PM
 
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Re: AVR Connectivity

really thank you @venkatcr

how can we get information that whether AVR is decoding or BDP is decoding and where signal converted in analog form.

and i want to know what is direct mode in my AVR(onkyo 3400) ? where can i get information about these different modes in AVR?
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  #26  
Old 27th June 2011, 11:52 PM
 
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Re: AVR Connectivity

Quote:
Originally Posted by ashish7811 View Post
how can we get information that whether AVR is decoding or BDP is decoding and where signal converted in analog form.

and i want to know what is direct mode in my AVR(onkyo 3400) ? where can i get information about these different modes in AVR?
The information is usually displayed by the AVR. If it displays 'Direct' or 'Multichannel', that means it is amplfying an analogue input. If it display 'Dolby Digital' or 'DTS', that means it is receving digital signal and decoding it.

Cheers
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  #27  
Old 28th June 2011, 01:49 PM
 
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Re: AVR Connectivity

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Originally Posted by ashish7811 View Post
and i want to know what is direct mode in my AVR(onkyo 3400) ? where can i get information about these different modes in AVR?
See page 21 to 24 of the manual.

You can get it from the AVR buttons or from remote.
Under "LISTENING MODE", keep pressing any of the four buttons (MOVIE/TV, MUSIC, GAME, STEREO). You will cycle through all the modes.
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  #28  
Old 2nd September 2011, 10:51 PM
 
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Question Re: AVR Connectivity

I'm looking for good quality composite video(+ red,white audio) cables that are locally available.This would be used as a replacement for the standard cables that came with my TataSky SD box.

Any ideas as to any particular brands I could look for and where ?
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  #29  
Old 3rd September 2011, 11:01 AM
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Re: AVR Connectivity

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Originally Posted by shrjun View Post
I'm looking for good quality composite video(+ red,white audio) cables that are locally available.This would be used as a replacement for the standard cables that came with my TataSky SD box.

Any ideas as to any particular brands I could look for and where ?
You can consider belkin cable.

Belkin 6 feet RCA Audio Flexible PVC Sound Cable + Bill | eBay
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  #30  
Old 3rd September 2011, 11:54 PM
 
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Re: AVR Connectivity

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Originally Posted by baijuxavior View Post
Does not seem to have the composite video cable though.

I guess that I would be looking for something like this - http://orders.ebay.in/ws/eBayISAPI.d...d=360343181319 - however this is from GEB and I would like to get something locally (but branded)


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